match tmp with
| None -> "0"
| Some a -> a.[4]
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Hi,
I'm still struggeling with simple tasks in F#, but I don't give up! ;-) I read a CSV file like this, CsvTools.Read returns a sequence of string arrays:
let data = "data.csv" |> CsvTools.Read
Column 0 and 4 build the mapping I'm interested in. To search a certain value, I tried this:
let getID (id: string) =
let tmp = Seq.tryfind (fun row -> row.[0]=id) data
match tmp with
| None -> "0"
| _ -> tmp.[4]
The last line causes an error, because tmp seems to be an option type. I think I understand the problem, but I have no idea how to get rid of it. Any help? Any better, simpler solution is also very welcome!
cheers,
Achim